The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 2015
Filed:
Sep. 23, 2011
Craig Knull, Edmonton, CA;
Jason Maw, Edmonton, CA;
Craig Knull, Edmonton, CA;
Jason Maw, Edmonton, CA;
Ulterra Drilling Tehcnologies, L.P., Fort Worth, TX (US);
Abstract
A rotary drag bit has one or more fixed composite cutting structures formed from a plurality of discrete prefabricated cutters that abut each other along complementary side surfaces, the composite cutting structure being placed and oriented on the cutting face of the rotating body so that the composite cutting structure presents a cutting profile that does not expose any portion of the cutting face that is between or behind the composite cutting structure, with respect to the direction of travel of the composite cutting structure during boring, to the uncut earth formation as the body is rotated during boring.